In addition to the Tailor Made concepts that Brabus trotted out for the Frankfurt Motor Show, the German tuning firm also showed off a new version of its electric Smart Fortwo called the Unlimited High Voltage. This new model is an updated version of the company's electric Smart ED concept and it features a lithium ion battery pack supplied by Tesla Motors, Daimler's electric vehicle partner.

A rear-mounted electric motor was also developed by Tesla and offers up 82 horsepower and 207 lb-ft of torque, which is sufficient to push the little electric runabout to 60 mph in under 10 seconds. Interesting touches include aerodynamic wheels with clear plexiglass covers and wider side skirts to improve airflow. Inside, white leather seats with yellow stitching join a console-mounted monitor that displays the remaining state of charge.

The single most intriguing bit of tech, though, would have to be the sound generator. This little unit will reportedly allow the diminutive electric machine to sound like a honkin' V8-powered racecar... should the owner feel so inclined, naturally. Check out the high-res image gallery below.